spoj BCFACT

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DATE: Feb. 16, 2014, 9:02 a.m.

FORMAT: C++

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  1. //Haha TTpro
  2. //BCFACT
  3. //http://www.spoj.com/PTIT/problems/BCFACT/
  6. #include <iostream>
  8. using namespace std;
  9. long long int giaithua(int a);
  10. int main()
  11. {
  12. int a;
  13. long long int s;
  14. while (true)
  15. {
  16. cin >>a;
  17. s= giaithua(a);
  18. cout<<s<<endl;
  19. }
  20. }
  23. long long int giaithua(int a)
  24. {
  25. long long int s=1;
  26. int i;
  27. for (i=1;i<=a;i++)
  28. {
  29. s=s*i;
  30. }
  31. return s;
  32. }
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